Driving mechanism of spinning and analogous machines



Nov. 15, 1927. 1,649,751

W. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNING AND ANALOGOUSMACHINES Filed Nov. 1, 1926 3 Sheets-Sheet 1 NEv. 15, 1927.

w. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNlNG AND ANALOGOUSMACHINES Filed Nov. 1. 1926 3 Sheets-Sheet a 2 2 z zxzz zzzzww AATTORNEY Nov. 15, 1927. 1,649,751

W. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNING AND ANALOGOUSMACHINES Filed Nov. 1, 1926 s Sheets-Sheet s zrrm/m Patented Nov. 15,1927.

UNITED STATES,

PATENT DRIVING MnoHAnIsi/i or srrnnme AND ananoeons acnrnns,

Application filed November 1 ,"1926, Serial No. 145,663, and in GreatBritain December 1, 1325.

This invention relates to roving, drawing, spinning and like machines,more particularly to the mechanism for driving certain elements'of thosemachines, and it has for its object to overcome several disadvantagespresented by the present driving means.

In roving drawing, or spinning machines it is usual at present toactuate the front rollers by means of twist gearing located at one endof the machine, that is to say, at the driving end, and to actuate theback rollers'by means of draft gearing located at the oppositeend of themachine; the intermediate rollers or carriers being driven by means ofspur gearing connecting them with the back rollers.

One ofthe disadvantages of this present arrangement is that power mustbe transmitted to the back rollers throughout the entire length of thefront BOllG1'S Wl1lCl1, in the case of machines or frames of greatlength imposes undue strain on the front rollers and their shafting andbearings. It is also objectionable in that the draft end of a machine isusually in thecentre of a room and the compulsory guarding of the draftgearing masks a large portion of .the machine.

Another disadvantage of the present ar rangement is that the backrollers cannot be moved for any purpose without disturbing the changewheels and without disengaging other gear; and, in the case of the usualmethod of driving the carriers the gearing not only takes upconsiderable space butit is the cause of vibration.

To overcome these disadvantages this invention consists in locating boththe twist gearing and the draft gearing at one end, namely the drivingend of the machine, so associated and arranged that adjustments betweenthe centres of the back and front rollers are capable of being effectedwithout disengaging the gearing. The invention also includes the drivingof the carriers directly from the draft gearing so that their speed isproportional to that of the back rollers.

The draftgearing is therefore carried by adjustable supporting meanswhereby it is maintained in correct relation to or association with thetwist gearing in accordance with the required conditions for the timebeing obtaining-the si pporting means cooperating to maintain thegearing constantly in mesh unless and until change wheels of otherdimensions are required.

In accordance with one constructional form of the invention the frontrollers may be driven by twist gearing of the usual form which isactuated in the ordinary manner from the cylinder shaft, and the backrollers may receive motion by means of a change wheel carried by and atthe driving end of the front roller shaft and meshing with anintermediate pinion the axis of which is adjustable vertically andhorizontally and which inturn engages a second change wheel whereof theaxis is not adjustable. The axis of said second change wheel carriesalso a spur wheel meshing with a second intermediate pinion carried byan angularlyadjustable lever and engaging a second spur wheel borne bythe back roller shaft which supports a second lever adjustable angularlyaboutthe axis'of said second intermediate pinion. Means are provided forlocking or securing the adjustable parts in any required position of'adjustment.

By this construction and arrangement ad justment of the back rollersrelatively to the front rollers can be effected without disturbing themeshing of any of the'gearin The outer carriers may be driven from thedriving end of the machine by meansof an adjustable chain or othersuitable drive actuated directly from the aforesaid back roller "ordraft gearing, and the inner carrier or carriers maybe driven from theop posite or what has been heretofore the draft end of the machine, bymeans of a similar adjustable chain or other suitable drive actuatedfrom that end of the back roller shaft.

In the accompanying drawings one convenient constructional embodiment ofthe invention is illustrated quasi-diagrammatically by way of example asapplied to one type of spinning machine, but it will be readilyunderstood that the invention is equally applicable to other types ofspinning and analogous machines.

Figure 1 is an end view and Figure 2 is a front view of a portion of anend-stand and illustrating only the driving mechanism or twistgearingfor the front rollers of the machine.

Figure 3 is an end view, Figure 4 is a front new, and Flgure 5 1s a planview, of

the upper part of the whole end stand, illustrating the drivingmechanism or draft gearing for the back rollers, and the driving meansfor the outer carrier rollers; the twist gearing being omitted for thesake of elearness.

Referring firstly to Figures 1 and 2. 1 is a portion of one half of theend-stand or main frame of the machine at the head of which is locatedthe top-board 2 upon which are disposed the creel pegs 3, 3, andforwardly from which extend the usualinclined carriage stands 1 thatsupport the back rollers 5, 5, the outer carrier rollers 6, 6, 7, 7, andthe middle or intermediate carrier rollers 8, 8. i y a 9, (omittedilrFigure 2 for the sake of clearness) is one of the upper frontrollers, and are lower front rollers which are borne in the usual mannerby the front roller shaft 11 extending lengthwise of the machine andsupported in bearing brackets such as 12 boltedto the end-stand 1, andalso supported intermediately by bearings such as 13 formed on orconnected with the inclined carriage stands 4 at their lower or frontends; the rollers 9 being driven frictionally, as usual, by the rollers10 which receive motion from twist gearing of the usual form actuated inthe ordinary manner from the main cylinder shaft 14:.

On the main cylinder shaft 1 1 is keyed a sprocket wheel 15 with whichan endless chain 16 engages and also with a sprocket wheel 17 keyed uponor otherwise secured to an arbor 18 carried by a slotted bracket 19suspended from an extension of the hearing bracket 12; and on said arbor18 there is also mounted a change wheel 20, which meshes with a gearwheel 21 keyed or other wise secured upon a spindle 22 carriedadjustably in a curved slot 22 formed in bracket 19. A pinion 23 is alsokeyed or otherwise rotatably mounted on spindle 22 and meshes with agear wheel 24: carried by the front roller shaft 11.

25 and 26 (see Figure 8) are slots formed in the end-stand 1 in order toenable adjustments, required by different sized change wheels, to beeffected in the angular position of the slotted bracket 19 which isclamped to the end-stand by bolts passing through said slots.

This construction and arrangement of twist gearing is usual andwell-known.

Referring now to Figures 3, 4t and 5, the back rollers 5, 5, are drivenat each side of the machine by the following arrangement of draftgearing. a

Removably secured upon the front roller shaft 11 is a change wheel 27which meshes with an intermediate pinion 28 carried by an arbor 29 borneby a slotted plate 80 which is clamped adjustably at 31 in ahorizontally slotted extension 32 of a bracket 33 bolted at 31 to theend-stand 1. The pinion 28 meshes with and drives a second change wheel35 mounted on an arbor 36 carried in a bearing formed on the extension32 of bracket 33. The slots in said plate and extension 32 provide forany adjustments which maybe necessitated by the use of different sizedchange wheels.

At the opposite endof the arbor 30 to the change wheel there is keyed apinion 37 (Fig. 1) which meshes with an intermediate pinion 38 mountedupon an arbor 39 borne at the upper extremity of one limb of abell-crank lever 10 carried pivot-ally upon the arbor 3 6 and having itsother limb adjustably clamped at 11 in an arcuate slot 12 formed in aprojection 43 on the bracket 33, and, articulated to the arbor 3!) is alever {14; anchored at its upper extremity on a fixed ccntre about theback roller shaft 15 upon which is keyed a pinion 16 with which saidintermediate pinion 38 meshes.

When, therefore, it is desired to alter the distance between the centresof the front rollers and the back, rollers to suit some variation in thequality of yarn, this may be done with great ease and simplicity bymerely slackening the nut clamping the bolt '11 and moving the leversand 44; inwards or outwards angularly until the desired change in theposition of the back rollor shaft 45 has been secured when said nut isre tightenedg the various change wheels and pinions of this particularsystem of gearing remaining in mesh while such adjustment is beingeffected. At the right hand side of Figure 3 the centres of the back andfront roller shafts -15 and 11 respectively are shewn as closer togetherthan shewn at the left hand side of the figure, which alteration inposition has been taken up by making the adjustment described above. i

In addition to the advantages arising out of the maintenance in constantmesh of the various elements of the gearing there is also the advantageinherent in the above de scribed arrangement that the change wheels areof smaller diameter than usually employed (because they are imlepcmlentof the position of the rollers) and they are more easily withdrawn andexchanged than in the arrangements at present in use; and,

furthermore, as will be obvious from the drawings, the arrangement ofgearing of this invention is less cumbersome and is more compact for thepurpose of guarding than those now in use. p i

The outer carrier rollers 6, 6, and 7, 7,

are driven from the same end of the machine as the above describedgearing and in the following manner The shaft 36 is prolonged inwardlythrough appropriate bearings carried by the end-stand 1 and on its innerextremity there till ill!

is keyed a sprocket wheel 47 while similar sprocket wheels 48 and 49 arekeyed upon the ends of the shaft of each lower outer carrier roller 6and 7 respectively and are disposed in the same vertical plane as thesprocket wheel i? so that an endless chain 50 passing over all threesprockets transmits motion from shaft 36 to said outer carrier rollers.

In order to compensate in this chain drive for adjustments of thecarrier rollers 6 and 7 upon the carriagestands 4 an intermediate orjockey sprocket wheel 50 is carried upon an arbor that is disposedadjustably in a vertical slot 51 formed in a bracket 52 securedappropriately to the machine frame on the inner side of the end-stand 1,by which means the correct tension of the chain 50 is maintained inaccordance with the particular adjustment, for the time being, of theouter carrier rollers.

It will be observed that said outer carrier rollers are therefore drivendirectly from the back roller gearing and at a speed which isproportional to that of the back roller shaft.

The middle carrier rollers 8 are driven independently from the oppositeend of the machine in a manner similar to the driving of the outercarrier rollers, that is to say, from a sprocket wheel keyed upon. theend of the back roller shaft 6&5, an endless chain passing over saidsprocket wheel and over another keyed upon the middle carrier rollershaft and also over an adjustable tensioning jockey sprocket wheelmounted similarly to the jockey 50 as will be readily understood fromthe above description and from the drawings; this being the only rollerdriving mechanism located at the end usually termed the draft end of theframe.

it will be understood that various modifications may be effected in thedetails of construction, and arrangement of the several elements ormechanisms which are embodied in the invention, in order to suit therequirements of machines of the different kinds to which the inventionis susceptible of application, without departingfrom the invention,provided that the alterations in design or arrangement retain theassociation of the twist and the draft gearing at the same end of themachine and also provided hat the principle of driving the severalrollers in the manner described is not materially affected.

Vfhat we claim is 1. Roving, drawing, spinning and like machinesincluding variable twist gear-- machines including variable twistgearing and variable draft gearing, characterized by the fact that saidvariable draft gearing is carried by adjustable supporting means wherebyit is maintained in correct relation to and association with saidvariable twist gearing and at the same end of the machine therewith.

3. In roving, drawing, spinning and like machines including variabletwist gearing and variable draft gearing both located in associatedrelationship at the same end of the machine and including back rollers,front rollers and carrier rollers, driving said variable carrier rollersdirectly from said draft gearing and in such a manner that their speedis directly proportional to the speed of said back rollers.

4. A machine of the character described, including a frame, variabletwist gearing and variable draft gearing associated with and located atthe driving end of the frame, and means for adjusting the centers of theback and front rollers, respectively, of said gearings withoutdisengaging the main gear elements. a

5. A machine of the character described, including a frame, variabletwist gearing and variable draft gearing associated with and located atthe driving end of the frame, means for adjusting the centers of theback and front rollers, respectively, of said gearings withoutdisengaging the main gear ele ments, said adjusting means including adouble bell-crank lever pivoted to the frame and in the outer end ofwhich is journaled the back roller, and means for adjustably connectingthe other free end of the lever to the frame for locking the back rollerin various adjusted positions.

In testimony whereof we affix our signatures.

WVILLIAM PRINCE-SMITH. DAVID WATERHOUSE.

characterized by said variable nu Am!

